Massey Ferguson A.12.18 – Mid Mount Valve Module: External Hydraulic Valve 1 Issue

Indicates a malfunction or fault condition within the first external hydraulic remote/spool valve circuit. Related codes point to connection problems or spool position sensor value issues.

• 5710SL
• 5711SL
• 5712SL
• 5713SL
• T4
• 4707
• 4708
• 4709
• 4710
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• 7714
• 7715
• 7715S
• 7716
• 7716S
• 7718
• 7718S
• 7719
• 7720
• 7720S
• 7722
• 7722S
• 7724
• 7724S
• 7726
• 7726S

1. 1

   Inspect the wiring harness and connectors leading to External Hydraulic Valve 1 for connection problems

2. 2

   Verify the readings of the spool position sensor for Valve 1

3. 3

   Check for CAN bus communication errors between the Dash and the Mid Mount Valve Module

1. 1

   Locate valve

   Locate External Hydraulic Valve 1 (usually the first spool valve in the rear remote stack or mid-mount block).

2. 2

   Clean contacts

   Disconnect the electrical harness and clean the contacts to rule out a connection problem.

3. 3

   Test sensor

   Test the spool position sensor for proper voltage/resistance.

4. 4

   Replace component

   If the sensor or the valve solenoid has failed internally, remove the retaining bolts for the Valve 1 group and replace the faulty component.

5. 5

   Clear DTCs

   Clear the DTCs using a compatible Massey Ferguson diagnostic tool or interface device.